五种不同基因型新疆鸢尾的叶片膜保护系统对土壤水分胁迫的响应  

Response of Soil Moisture Stress on the Membrane Protective System of 5 Different Genotype of Iris Species in Xinjiang

作　　者：周源[1] 董玉芝[1] 朱颖[2] 吴伟[2] 覃燕[2] 

机构地区：[1]新疆农业大学林学院,新疆乌鲁木齐830052 [2]乌鲁木齐市植物园,新疆乌鲁木齐830011

出　　处：《北方园艺》2010年第11期116-118,共3页Northern Horticulture

基　　金：乌鲁木齐市园林局资助项目

摘　　要：研究了中亚鸢尾、膜苞鸢尾、喜盐鸢尾、蓝花喜盐鸢尾和马蔺在土壤水分胁迫条件下,膜保护酶超氧化物歧化酶(SOD)、过氧化物酶(POD)活性的影响。结果表明:在整个干旱处理过程中SOD、POD先上升而后下降,5种鸢尾SOD、POD活性达最高的处理时间种间存在差异。膜脂过氧化产物丙二醛(MDA)含量和膜透性在干旱处理中持续增加。The change characteristics of superoxide（SOD）, peroxidase（POD） and MDA of 5 species of Iris under droughts were researched. The results showed that under the conditions of soil moisture stress, the activation of SOD and POD of Iris bloudowii Ledeb. ,Iris scariosa Willd, Iris halophila Pall. ,Iris halophila var. sogdiana ,and Iris. lactea , increases at first and then decreases in the whole drying treatment process. There are some differences among the activation of SOD and POD and CAT of the 5 species of Iris. In the drying treatment, the content of MDA and electric conductivity increased as the water stress stronger.

关 键 词：鸢尾 膜保护酶 丙二醛 膜透性 

分 类 号：S512.1[农业科学—作物学]